What float switch for a waste ejector pump?

What do you guys suggest on the best float switch for my new waste ejector pump. I bought the Zoeller 267 non-auto so I can put a switch that will last. Which I learned from you guys, thanks. Now I'm just trying to figure what one will be the best and last the longest. I don't want to be going back into that tank once it starts to get used. But if I have to, make it a easy quick repalcement of the switch.
Should I buy one of the Rhombus mercury or mechanical or vertical switches or the Hydromatic diaphragm D-switch?